Is there anything in particular that's causing a trouble? It'd be easier if you posted the Latin and asked specific questions. Or post your translation and hope someone who has the book can correct it.

A raging storm was preventing Hannibal’s army from crossing the Appennines: a great rain together with wind was confronting the soldiers, who were afraid they couldn’t bear such intense cold. They remained two days in that place as if besieged. Many men died, many animals dies: even seven elephants that had survived up until that point died. After he came down from the Appennines, Hannibal moved the camp to Placentia and after progressing ten miles, he encamped. The next day, he led twelve thousand foot soldiers and five thousand cavalry men against the enemy. Neither did the consul Sempronius refuse battle. There were three miles between the two camps that day; the next day, they fought with great courage. First, the power of the Romans was so superior that not only they were winning but followed the enemies they had pushed back to (their) camp and besieged it. It was now the ninth hour of the day, when the Roman general ordered his soldiers to retreat completely, since there was no hope of taking the camp. As soon as Hannibal heard this, cavalrymen were sent out and he himself rushed out of the middle of the camp with the infantry against the enemy. There was a bitter fight, but night interrupted the battle. On either side, six hundred foot-soldiers and three hundred cavalrymen died; but the greater loss happened to the Romans, because a few of the equestrian order, five tribunes and three prefects of the allies were killed.